operational amplifer

53:16

13:08

9:52

9:52

17:13

27:32

49:31

کوتاه

2:08

2:08

16:39

22:43

3:59

5:46

11:39

کوتاه

1:05

20:38

2:20

14:29

6:41

2:24

3:38

3:12

1:19:33

1:30:00

1:44

2:58

1:59

25:15

12:43

1:37

3:48

6:38

4:13

1:19:33

7:10

2:00

2:31

4:01